Cylinder-head for sleeve-valve motors.



T. D. LEMIEUX. CYLINDER HEAD PoE SLEEVE VALVE MoToBs.

APPLICATION FILED 00T.8, 1913.

Patented Mar. 24, 1914 gnou/toi TU. LE Ml E u x Illlll/ 11111 l.|.l||l|llI|. ffff m I |J|| VII n n f V .i .f .i l u i |l. rl| I/.\\ww .Ll 1 nr l I l l l l I F4 rIIV l F THOMAS D. LEMIEUX, OF CLEVELAND, OHIO.

CYLINDER-HEAD FOR SLEEVVE-VALVE MOTORS.

Speccation of Letters Patent.

' PatentedV Mar. 24,1914.

Application led October 8, 1913. Serial N o. 794,125.

T 0 all -w/zom t may concern Be it known that I, THOMAS D. LEMIEUX, acitizen of the United States, residing at Cleveland, in the county ofCuyahoga and State of Ohio, have invented certain new and usefulImprovements in Cylinder-Heads for Sleeve-Valve Motors, of which thefollowing is a specification, reference being had to the accompanyingdrawings.

This invention relates to new and useful improvements in sleeve-valvemotors and more particularly to a cylinder head therefor and the primaryobject of the invention is to provide means in connectionwlth thecylinder head to prevent the noise incident to the use of motors of thischaracter.

A further object of theinvention resides in providing means inconnection with the cylinder head to permit explosive gases to passtherethrough and expand the packing rings circumscribing the same.

Still another object of the invention resides in p-roviding a pluralityof slots or channels in the bottom of the cylinder head whichcommunicate with one of the grooves containing a p acllng ring, whereby'the compression niay pass through said slots or channels to cause saidring to expand in the operation of the motor.

A still further object of the invention resides in providing a devicewhich is simple and durable in construction, inexpensive to manufactureand one which will be very eliicient and useful in operation.

`With these and other objects in view, the invention consists in thenovel features of construction, combination and arrangement of parts aswill be hereinafter referred to and more particularly pointed out in thespecification and claim.

In the accompanying drawing formlng a part of this application, .Figure1 isa fragmentary vertical section through a cylinder head embodying myimprovements therein; and Fig. 2 is a bottom plan view thereof.

in describing my invention, I shall refer to the drawing in whichsimilar reference characters designate corresponding parts throughoutthe several views and in which i indicates a cylinder head such as isused in connection with a well known type of sleeve-valve motor, thedependin portion of said cylinder head being receive 1n the upperportion of a sleeve-valve 2. Inasmuch as this sleeve-valve and head asshown, are

used in connection with a motor of a Well knowntype, a detaileddescription of the construction thereof Will not be here given. It willbe stated here, however, that this cylinder head has a depending portionwhich is designed somewhat hollow to formV vis reciprocated and afterconstant use, be-

come worn, thus permitting the loss of compression therethrough. Whenthese rings become worn, they are obviously loose in their grooves andas the sleeve-valve 2 is reciprocated, considerable noise occurs at the-points at which th'esel rings are located.

My invention primarily contemplates the provision of a means to remedythis difficulty and, to this end, the extreme lower portion of thecylinder head 1 which is increased in thickness and designed annular, asshown at 6, is provided with a plurality of outwardly inclined channelsor ports-7 which communicate with the adjacent groove 4 in the outerface ofrsaid cylinder head. In the drawing, I have shown but four ofsuch ports or channels, but it will be understood that as many ofthesame may be provided as are found desirable and it will be `seen that asthe explosions take place, the compression in the cylinder will bepassed through the channels or ports 7 to cause said rings 5 to expand.Itwill be seen, therefore, that these rings will expand when `the motoris in operation, thus preventing a loss of compression at such pointsand obviously eliminating the noise which ordinarily occurs at thesepoints inmotors which are not provided with such means as herein shownand described.

- From the foregoing it will be seen that -I have provided asimple,inexpensive and efficient means for carrylng out the objects ofthe invention, and while I have particularly described the elements bestadapted to perform the functions set forth, it is obvious that variouschanges in form, proportion and in the minor details of construction maybe resorted to without departing from the spirit or sacricing any of theprinciples of the invention.

ILOO

Having thus described this invention, what is claimed isz- A In a motorof the class described, the -colibinatioii witha cylinder head having adepending portion thereon, said depending portion being provided with apair of spaced circumferential grooves disposed adjacent the lower endof said depending por: tion, the lowermost groove being of greaterheight than-the upper groove, said depending portion of the head alsohaving its lower peripheral edge provided with upwardly and outwardlyinclined channels terminati ing at theirouter ends in the lowermostcircumferential groove, and packing rings .mounted in the grooves ofsaid head; of a sleeve valve slidably engaged with the depending portionof said cylinder head, said channels in the head permitting compressionin the cylinderto be directed to the one groove to permit the packingtherein to expand and fit tightly against the inner periphery of thesleeve valve.

In testimony whereof I hereunto aiiix my signature in the presence oftwo witnesses.

THOMAS D. LEMIEUX;

Witnesses PATRICK FOLEY, JOHN CoRooRAN.

